This attribute must be set with the following format: For the 1696R and 1830 PSS-32 single line ported cards: <protChIfIndex>:<workChIfIndex> For the 1830 PSS-1 GBE and MD4H, and 1830 PSS-32 4DAP4A (i.e., all dual-line ported cards): <protLineIfIndex>:<workLineIfIndex>:<clientIfIndex> The ifIndices must be in decimal ASCII and delimited by a colon. If this format is not followed, the set will fail. This attribute can only be set in conjunction with setting tnApsGroupRowStatus. For a row status of createAndGo: If the ifIndices do not represent protection supported ports, provisioned in the supported slots, the set will be failed. Setting this attribute will result in creating 2 interface entries in table tnApsMemberTable. For a row status of destroy: If both ifIndices are not set to zero, the set will be failed. Setting this attribute will result in deleting 2 interface entries in table tnApsMemberTable. No other row status values are supported with this attribute.